41B8vRbwntL

This pentype digital pH Meter measure pH level range from 0~14pH and has the following advance features: automatic calibration (pH4, pH7 & pH10), waterproof - designed to protect against windblown dust, powder dust, water splashes, rain and wash...

£27.99
 
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31zD6Zs4SNL

" Specifications Measuring range: 0-9990ppm Accuracy: ¡À 3% Batteries: 2x 1.5V LR44 button cells Auto shut-off: 10 minutes Operating temperature: 0-99?C / 32-212?F ATC(Automatic Temperature Compensation): 0-50¡æ/ 122¨H Weight: 54g ...

£12.99
 
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41346jz3N6L

The TDS meter is a handheld and convenient digital tool to instantly check your overall water quality. Submerge the item for no more than 5cm (from the begin) and gently stir, wait for 10~30 seconds and press the "hold" button to get the the...

£7.99
 
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31KoCPt5slL

TDS (Total Dissolved Solids), which is any salt, metal or mineral in the water. The lower the TDS level, the purer the water, with 0 ppm being pure H2O. Features: - Shows the TDS value instantly after being immersed into liquid - Hold Function:...

£6.99
 
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